摘要
降低能耗进而延长网络生存时间是无线传感器网络设计中的一个重要挑战。文章提出一个转移概率矩阵H的概念来平衡各个传感器的能耗,然后基于这个概念提出了一种等效为电路的路由协议。该协议的本质是以电路来等效传感器网络,用传输的信息量等效为电流,路径的损耗等效为电阻。最后对该协议进行了性能评估和仿真,结果表明该协议能够有效的提高传感器网络的能量效率。
Reducing power consumption to extend network lifetime is one of the most important challenges in designing wireless sensor networks. This paper introduces a probability matrix H to balance power consumption of every sensor. Then a circuit routing protocol is proposed. The essence of this protocol is to make a circuit equivalent to the sensor network, transmitted information to current and the depletion to resistance. Finally, the performance of the proposed protocol is evaluated and simulated results show that it can get lower power consumption for sensor networks.
出处
《信息工程大学学报》
2009年第3期336-339,共4页
Journal of Information Engineering University
关键词
无线传感器网
网络生存时间
电路路由协议
wireless sensor network
network life-time
circuit routing protocol